The accumulation of breast milk, formula, perspiration, shed skin cells, spit up, and saliva that gets caught in the neck creases of an infant, and creates a powerful odor (like stinky cheese). May precede or accompany intertrigo or a yeast infection.

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the lingering odour of a fat person's neck, especially at the top of the neck. usually a horridly rank mix of dairy products and unusually high sodium content and the inability to scrub that unreachable area of the neck that plagues the obese.

john: dude, why do i smell cheetos and corn beef mixed with sadness?

matt: oh, thats just the fat kid in the corner, he just got out of gym class.